In my opinion, if you're not angry, you're not paying attention.
In that particular video, posie's anger was powerful. Her utter incredulity that anyone could display that kind of mental conflict was totally believable.
When Posie is going to her campaigns holding 5 foot tall posters of the horrifyingly mutilated arms of young women who want to be given some rolled up arm skin as a fake penis? - if you're not angry, there is something wrong.
These images are so distressing HQ will not allow you to link to them on this site. And, predictably, transactivists will claim that they are fake photos, made up theatre props. And have done so. On this site.
If you're trying to show people the result of this ideology, and you're not allowed, and people then claim it's fake because you can't provide proof, anger is the only appropriate response.